The tray type de-energized tap changer is manufactured by Rockwill Electric in China. It applies to the three-phase oil-immersed electrical power & distribution transformer with the frequency of 50Hz, 60Hz, rated voltage of 10kV,35kV and rated current of 63A,125A,250A.
The on load capacity regulating tap changer is used for three phase oil-immersed capacity regulation power transformer with rated capacity of 315 kVA, 400 kVA and 630 kVA at 50Hz / 60Hz, and the voltage class is 12kV. This type on load tap changer has high stability and reliability for your free maintenance.
Rockwill SV type on load tap changer, which has advanced structure, long service life and high reliability. It is normally used in high voltage oil-immersed three-phase transformer as three phase step voltage regulator with frequency 50Hz/60Hz, voltage from 110kV to 126kV, and maximum rated passing current from 200A to 350A.
China Rockwill F series on load tap changer (OLTC), which has advanced structure, long service life and high reliability. It is normally used in oil-immersed three-phase transformer as three phase step voltage regulator with frequency 50Hz/60Hz, voltage up to 40.5KV and rated current up to 400A.
Rockwill's MV Turnkey container type compact substation is desined for easy transportation and fast installation. Which is pre-assembled for easy set-up and commissionin. It is modular design to each cell up to 35kV and 3.5 MW.
Rockwill Electric Group is a professional oil immersed distribution transformer manufacturer which is located in China. We are submitted in providing distribution transformer with high quality and competitive price for our worldwide customers.
11kV 1000kVA distribution transformer manufactured by Rockwill in China. It uses Dyn11 and the core is laminated with quality cold-rolled silicon steel sheets. Fully sealed structure, which prolongs the service life. Lower noise value than standard requirement.
China 33kV 50kVA Oil Immersed Distribution Transformer manufactured by Rockwill Electric which has good quality and low price. This transformer has a wide application range which includes power plant, substation, industry & commerce building,etc.
China pad mounted transformer manufactured by Rockwill Electric. These series of pad-mounted transformer is oil-immersed with power rating from 25 to 2500kVA at 50/60 Hz power transmission and distribution system.
Compact Mining Substation is widely used in mining industry, easy for transportation, installation and maintenance. Rockwill brand Mining Substation is now running in more than 30 countries in Africa, Amercia, Asia etc.
11/0.4kV compact transformer substation - Rockwill Brand A profesional manufacturer of 11/0.4kV class substation from 200KVA up to 2500kVA. The ISO qualified compact transformer substation manufacturer from China.
China YBM series pad mounted transformer is suitable for 7.2kV up to 36kV ring power or radial network. It can be used indoor or outdoor. It has high quality and good price for selling abroad. Including Africa, South Asia, Middle East and so on.
YBM-15 type pad mounted transformer manufacturer from China.Voltage from 7.2kV up to 36kV. YBM series pad mounted transformer is ANSI standard transformer substation which has high quality and great price.